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Cadillac STS Replacement Catalytic Converter Information

Read Reviews for Cadillac STS Catalytic Converter -
5 stars - (5 Reviews)
Cadillac STS Catalytic Converter Reviews
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Did you know that catalytic converters can stop working as they age, causing your engine to belch out dangerous fumes and poisonous gas? Yes, this is the purpose of a catalytic converter: to convert the toxic byproducts of internal combustion engines to environmentally acceptable substances. When the catalyst is used up, you need a new Catcon. Designed to meet or exceed GM emissions requirements, our genuine OEM replacement part Catalytic Converters will return your Cadillac STS exhaust emissions to correct levels. Properly selected and installed, they are compatible with emissions standards in 49 states (excepting California) and guaranteed to get your Caddy back to factory specifications in time for the emissions test. Why pay more for the same item? Genuine OEM parts are PartsGeek.com's stock in trade. This official Cadillac replacement part will add new life to your Cadillac STS and help provide years of worry-free driving pleasure.


They are available for the following Cadillac STS years: 2008, 2007, 2006, 2005, 08, 07, 06, 05. This part is also sometimes called Cadillac STS Exhaust Converters. We stock catalytic converter parts for most Cadillac models including CTS, DeVille, SRX, Escalade, Seville, DTS, Eldorado, Fleetwood, Allante, Brougham, Catera, Commercial Chassis and Cimarron.

We stock these Catalytic Converter brands for the Cadillac STS: Eastern Catalytic, Bosal, Walker, Magnaflow and DEC.


› Change Vehicle
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(Read reviews)
Our List Price: $234.33
(16) In Stock
Product SKU: 50444
Product Note: DIRECT FIT -- Undercar Right; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Right
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2006 (06) Cadillac STS 3.6L V6 

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Eastern Catalytic 50443
Catalytic Converter
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Our List Price: $234.33
(12) In Stock
Product SKU: 50443
Product Note: DIRECT FIT -- Undercar Left; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Left
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2005 (05) Cadillac STS 3.6L V6 

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Eastern Catalytic 50443
Catalytic Converter
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Our List Price: $234.33
(12) In Stock
Product SKU: 50443
Product Note: DIRECT FIT -- Undercar Left; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Left
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2006 (06) Cadillac STS 3.6L V6 

Click to Enlarge
(Read reviews)
Our List Price: $234.33
(16) In Stock
Product SKU: 50444
Product Note: DIRECT FIT -- Undercar Right; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Right
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2005 (05) Cadillac STS 3.6L V6 

Click to Enlarge
(Read reviews)
Our List Price: $234.33
(16) In Stock
Product SKU: 50444
Product Note: DIRECT FIT -- Undercar Right; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Right
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2007 (07) Cadillac STS 3.6L V6 

Click to Enlarge
Eastern Catalytic 50443
Catalytic Converter
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Loading Reviews...
Our List Price: $234.33
(12) In Stock
Product SKU: 50443
Product Note: DIRECT FIT -- Undercar Left; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Left
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2007 (07) Cadillac STS 3.6L V6 

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Bosal 079-5238
Catalytic Converter
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Our List Price: $207.33
(11) In Stock
Product SKU: 079-5238
Product Note: Catalytic Converter -- Direct Fit; Not legal for sale in California. Not legal in NY for vehicles with California Emissions.
Position of Product: Left
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 25,000 Mile Bosal Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2005 (05) Cadillac STS 3.6L V6 Naturally Aspirated 

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Bosal 079-5238
Catalytic Converter
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Loading Reviews...
Our List Price: $207.33
(11) In Stock
Product SKU: 079-5238
Product Note: Catalytic Converter -- Direct Fit; Not legal for sale in California. Not legal in NY for vehicles with California Emissions.
Position of Product: Left
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 25,000 Mile Bosal Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2006 (06) Cadillac STS 3.6L V6 Naturally Aspirated 

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Walker 93252
Catalytic Converter
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Our List Price: $96.33
(>35) In Stock
Product SKU: 93252
Product Note: EPA Ultra Universal Converter -- Fits Fed & Calif Emiss. Models; Not legal for sale in the state of California. Not legal for use on California emission vehicles in New York. Legal for use on Federal/EPA emission vehicles in New York.; Modifications and/or additional parts required.
Position of Product: Right
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Walker Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2005 (05) Cadillac STS 4.6L V8 

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(Read reviews)
Our List Price: $268.33

Product SKU: 50471
Product Note: DIRECT FIT -- Undercar Left; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Left
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2011 (11) Cadillac STS 3.6L V6 

Click to Enlarge
(Read reviews)
Our List Price: $268.33

Product SKU: 50471
Product Note: DIRECT FIT -- Undercar Left; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Left
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2010 (10) Cadillac STS 3.6L V6 

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(Read reviews)
Our List Price: $119.14

Product SKU: 51205
Product Note: Universal OEM GRADE Federal (Exc.CA) -- Cutting and welding required during installation
Position of Product: Right
Condition: New

Shipping Options:
Ground

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2009 (09) Cadillac STS 3.6L V6 

Click to Enlarge
(Read reviews)
Our List Price: $268.33

Product SKU: 50471
Product Note: DIRECT FIT -- Undercar Left; Legal Note: Not For Sale or Use in the state of CA & NY (vehicles with CA Emissions)
Position of Product: Left
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile Eastern Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2008 (08) Cadillac STS 3.6L V6 

Click to Enlarge
(Read reviews)
Our List Price: $210.33
(13) In Stock
Product SKU: 079-5237
Product Note: Catalytic Converter -- Direct Fit; Not legal for sale in California. Not legal in NY for vehicles with California Emissions.
Position of Product: Right
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 25,000 Mile Bosal Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2007 (07) Cadillac STS 3.6L V6 Naturally Aspirated 

Click to Enlarge
(Read reviews)
Our List Price: $291.33
(10) In Stock
Product SKU: GM20376D
Product Note: Catalytic Converter -- Bank #2
Position of Product: Left
Inventory: In Stock
Condition: New

Shipping Options:
Ground

5 Year / 50,000 Mile DEC Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: B
Vehicle Sub Model Engine
• 2006 (06) Cadillac STS AWD  3.6L V6 

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(Read reviews)
Product List Price:
$724.44
Our List Price: $413.48
with FREE Shipping
(7) In Stock
Product SKU: W0133-1952629
Product Note: EPA Compliant - (48-State & Canada) EPA Tier 0 & Tier 1 emission use.
Detailed Note: Not legal for sale or use in California and New York
Position of Product: Right
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)

5 Year / 50,000 Mile DEC Limited Warranty

{We currently do not ship this catalytic converter to California or New York}
Additional Fitment Information: Catalog: A
Vehicle Engine
• 2007 (07) Cadillac STS 3.6L V6 


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Some of our Customer Reviews
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Reviewer: Lackman

Great products and services beat and store thanks.

2005 Cadillac STS Catalytic Converter


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